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TI op amps eye DSL, video apps

Posted: 02 Dec 2002 ?? ?Print Version ?Bookmark and Share

Keywords:texas instruments? burr brown? opa690? opa691? opa692?

Texas Instruments Inc. has further expanded its Burr-Brown product line with the addition of a series of operational amplifiers that are suitable as DSL line drivers, video buffers, and ADC input drivers.

The series offers single, dual, and triple channel versions in either voltage feedback (OPA690), current-feedback (OPA691), or fixed-gain video buffer (OPA692) topologies.

The OPA690 is a unity-gain stable amplifier with optional disable that can deliver a 1V to 4V output swing with >150mA drive current and 150MHz bandwidth, from a 5V supply. This makes it suitable for use as an RGB line driver or single supply ADC input driver.

The dual OPA2690 supports high slew rate differential I/O requirements, while the triple OPA3690 enables higher order active filters in a single package.

The OPA691 operates from a 5.1mA supply current and offers a slew rate of 2.1kV/?s and output power of 190mA, making it suitable for multi-line broadcast video interface applications. The dual OPA2691 addresses the differential I/O requirements of xDSL, while the triple OPA3691 is suits RGB line driving where gain or frequency response shaping is desired.

The OPA692 broadband, fixed-gain video buffer amplifier has an optional disable feature and delivers a 1V to 4V swing with >120mA drive current and >200MHz bandwidth, from a 5V supply.

Suggested resale pricing in 1,000 piece quantities starts for the single channel versions at $1.50 (OPA690), $1.45 (OPA691), and $1.35 (OPA692).

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